The historic warship was packed with Boston Marathon first responders.

“I am extremely proud,” Deputy Superintendent Michael Bosse said.

Members of the Massachusetts State Police, Boston EMS, Boston Police and Fire Departments, among others, took part in a wreath laying ceremony to remember those who dies in the bombings and for their incredible acts of bravery.

“It’s fitting that we hold this ceremony on a ship that served as a turning point in the war of 1812, but it’s also a symbol of strength for the City of Boston,” USS Constitution Commander Matthew Bonner said.

A moment of silence was also held on board the ship.

“For them to recognize the efforts of the Watertown Police Department is terrific. It’s a tough ticket to get on this ship and for us to be a part of this is a real tribute,” Watertown Police Chief Edward Deveau said.

As the oldest commissioned warship afloat got underway a 21 gun salute took place along Castle Island.

“People in Boston and in the United States don’t give up and what better place to remember that on Old Irsonsides?” BAA Executive Director Tom Grilk said.